We look at the division of 312610 by 66 
The aim is to understand the frequency of 66 in 312610.

Moving on to step 1:
If we divide 3 by 66, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 66

Step 2:
The number 66 fits into 31 0 times, leaving a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 31 leaves us with 31.
Grab the next digit (2) from the dividend, add it to 31, then carry on: 312 / 66

Going ahead to step 3:
When dividing 312 by 66, we get 4 with a remainder of 48.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 264 from 312 leaves us with 48.
Bring next digit (6) of the dividend behind the 48 and repeat the process: 486 / 66

Going ahead to step 4:
66 can be fit into 486 7 times, resulting in a remainder of 24.
Record the quotient 7 as the next digit in the result. 
Result so far: 47.0
The remainder is 24 after subtracting 462 from 486.
Take the next digit (1) from the dividend and append it to 24, then repeat: 241 / 66

On to step 5:
The number 66 fits into 241 3 times, leaving a remainder of 43.
Put 3 as the next digit of the answer. 
Result so far: 473.0
If we subtract 198 from 241, we get 43.
Grab the next digit (0) from the dividend, add it to 43, then carry on: 430 / 66

Let's proceed to step 6:
The number 66 fits into 430 6 times, leaving a remainder of 34.
The next digit of our result is 6. 
Result so far: 4736.0
If we take 396 away from 430, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 7:
66 goes into 340 5 times with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 4736.5
Deduct 330 from 340 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
If we divide 100 by 66, we get 1 and a remainder of 34.
The number 1 becomes the next digit in our result. 
Result so far: 4736.51
Subtracting 66 from 100 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 9:
If we divide 340 by 66, we get 5 and a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 4736.515
Subtract 330 from 340 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
66 goes into 100 1 times with a remainder of 34.
Use 1 as the next digit of our solution. 
Result so far: 4736.5151
The remainder is 34 after subtracting 66 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 11:
66 goes into 340 5 times with a remainder of 10.
The next digit of our result is 5. 
Result so far: 4736.51515
If we take 330 away from 340, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 12:
66 can be fit into 100 1 times, resulting in a remainder of 34.
Use 1 as the next digit of our solution. 
Result so far: 4736.515151
If we subtract 66 from 100, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 13:
66 can be fit into 340 5 times, resulting in a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 4736.5151515
Subtracting 330 from 340 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 14:
The number 66 fits into 100 1 times, leaving a remainder of 34.
Record the quotient 1 as the next digit in the result. 
Result so far: 4736.51515151
If we subtract 66 from 100, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

The final result is 4736.51515151 with a remainder of 3.4e-08.